Created attachment 507697 Framedump (for the assertion in comment 93) The cause of the assertion/crash in comment 93 is the RemoveFrame we added causes a lot of first-letter frames to become empty. Then we reflow one of those and it can't handle that. (See bug 578977.) The GetNextSibling() check we added should prevent this.
The assertion in comment 95 looks like a bogus assert. I think it's a typo that was really meant to be "overflowFrames->IsEmpty()": http://hg.mozilla.org/mozilla-central/annotate/e98b94aa64fa/layout/generic/nsFirstLetterFrame.cpp#l364 I propose we simply remove it since StealOverflowFrames() already assert this: http://hg.mozilla.org/mozilla-central/annotate/e98b94aa64fa/layout/generic/nsContainerFrame.h#l627 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/677551 Title: pressing Enter in a large textarea is very CPU intensive with Firefox 4.0 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
